/* Copyright  2009-2010
   @Author
   Richard Changde Yin            e-mail yinchangde@hotmail.com

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */


/*
*  @filename : field/timestamp.h
*/
#ifndef _SERVER_FIELD_TIMESTAMP_
#define _SERVER_FIELD_TIMESTAMP_

#include <field/str.h>


typedef struct charset_info_st CHARSET_INFO;

class Field_timestamp :public Field_str {
public:

  using Field::val_int;
  using Field::val_str;
  using Field::cmp;
  using Field::store;

  Field_timestamp(unsigned char *ptr_arg, uint32_t len_arg,
                  unsigned char *null_ptr_arg, unsigned char null_bit_arg,
                  enum utype unireg_check_arg, const char *field_name_arg,
                  TABLE_SHARE *share,
                  const CHARSET_INFO * const cs);

  Field_timestamp(bool maybe_null_arg, const char *field_name_arg,
                  const CHARSET_INFO * const cs);
  inline enum_field_types type() const { return COLLAPSAR_TYPE_TIMESTAMP;}
  inline enum ha_base_keytype key_type() const
  /// global.h
   { return HA_KEYTYPE_ULONG_INT; }
  inline enum Item_result cmp_type () const { return INT_RESULT; }
  int  store(const char *to,uint32_t length,
             const CHARSET_INFO * const charset);

  int  store(double nr);

  int  store(int64_t nr, bool unsigned_val);

  inline int  reset(void) { ptr[0]=ptr[1]=ptr[2]=ptr[3]=0; return 0; }

  double val_real(void);
  int64_t val_int(void);
  String *val_str(String*,String *);
  int cmp(const unsigned char *,const unsigned char *);
  void sort_string(unsigned char *buff,uint32_t length);
  inline uint32_t pack_length() const { return 4; }
  void sql_type(String &str) const;
  inline bool can_be_compared_as_int64_t() const { return true; }
  inline bool zero_pack() const { return 0; }
  void set_time();
  virtual void set_default();

  /* Get TIMESTAMP field value as seconds since begging of Unix Epoch */
  long get_timestamp(bool *null_value);
  void store_timestamp(time_t timestamp);
  bool get_date(COLLAPSAR_TIME *ltime,uint32_t fuzzydate);
  bool get_time(COLLAPSAR_TIME *ltime);
  timestamp_auto_set_type get_auto_set_type() const;
};

#endif //_SERVER_FIELD_TIMESTAMP_

